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Berthella pellucida
(Pease, 1860)
 
Berthelina pellucida
Maximum size:  20 mm (Kay, 1979).

Identification: This is a translucent cream species finely reticulated with pale white and with a variable amount of opaque white spotting on the notum.

Natural history:  Berthella pellucida is a moderately rare nocturnal pleurobranchid found in protected to moderately exposed rocky habitats. It occurs in the low intertidal, in tide pools and subtidally to depths of  9 m (30 ft). It lays a white collar-shaped egg mass that hatches in about seven days in the laboratory.

Distribution:  Big Island, Maui, Oahu, French Frigate Shoals and Midway: may be more widely distributed in the Indo-Pacific?

Taxonomic notes:  This species was first reported from Hawaii in Pease, 1860. In many sources, it's listed as Berthella stellata but that name was restricted to Eastern Atlantic populations by Ghanimi, et. al. (2020). Berthella pellucida was resurrected for the Hawaiian population.

Photo:  CP: 7 mm: Hekili Point, Maui; Nov. 23, 2006.

Observations and comments:

Note 1:  ( )
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